/usr/include/xenomai/asm-arm/features.h is in libxenomai-dev 2.5.5.2-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | /*
* Copyright (C) 2005 Philippe Gerum <rpm@xenomai.org>.
*
* ARM port
* Copyright (C) 2005 Stelian Pop
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#ifndef _XENO_ASM_ARM_FEATURES_H
#define _XENO_ASM_ARM_FEATURES_H
#include <asm-generic/xenomai/features.h>
#ifdef __KERNEL__
#if defined(CONFIG_CPU_SA1100) || defined(CONFIG_CPU_SA110)
#define CONFIG_XENO_ARM_SA1000 1
#endif
#ifdef CONFIG_AEABI
#define CONFIG_XENO_ARM_EABI 1
#endif
#define CONFIG_XENO_ARM_HW_DIRECT_TSC 1
#else /* !__KERNEL__ */
#define __LINUX_ARM_ARCH__ CONFIG_XENO_ARM_ARCH
#endif /* __KERNEL__ */
#define __xn_feat_arm_atomic_xchg 0x00000001
#define __xn_feat_arm_atomic_atomic 0x00000002
#define __xn_feat_arm_eabi 0x00000004
#define __xn_feat_arm_tsc 0x00000008
/* The ABI revision level we use on this arch. */
#define XENOMAI_ABI_REV 3UL
#if __LINUX_ARM_ARCH__ >= 6
/* ARMv6 has both atomic xchg and atomic_inc/dec etc. */
#define __xn_feat_arm_atomic_xchg_mask __xn_feat_arm_atomic_xchg
#define __xn_feat_arm_atomic_atomic_mask __xn_feat_arm_atomic_atomic
#else
/* ARM < v6 has only atomic xchg, except on SA1000 where it is buggy */
#ifdef CONFIG_XENO_ARM_SA1100
#define __xn_feat_arm_atomic_xchg_mask 0
#else
#define __xn_feat_arm_atomic_xchg_mask __xn_feat_arm_atomic_xchg
#endif
#define __xn_feat_arm_atomic_atomic_mask 0
#endif
#define __xn_feat_arm_eabi_mask __xn_feat_arm_eabi
#ifdef CONFIG_XENO_ARM_HW_DIRECT_TSC
#define __xn_feat_arm_tsc_mask __xn_feat_arm_tsc
#else /* !CONFIG_XENO_ARM_HW_DIRECT_TSC */
#define __xn_feat_arm_tsc_mask 0
#endif /* !CONFIG_XENO_ARM_HW_DIRECT_TSC */
#define XENOMAI_FEAT_DEP ( __xn_feat_generic_mask | \
__xn_feat_arm_atomic_xchg_mask | \
__xn_feat_arm_atomic_atomic_mask | \
__xn_feat_arm_eabi_mask | \
__xn_feat_arm_tsc_mask)
#define XENOMAI_FEAT_MAN __xn_feat_generic_man_mask
static inline int check_abi_revision(unsigned long abirev)
{
return abirev == XENOMAI_ABI_REV;
}
static inline const char *get_feature_label (unsigned feature)
{
switch (feature) {
case __xn_feat_arm_atomic_xchg:
return "sa1100";
case __xn_feat_arm_atomic_atomic:
return "v6";
case __xn_feat_arm_eabi:
return "eabi";
case __xn_feat_arm_tsc:
return "tsc";
default:
return get_generic_feature_label(feature);
}
}
#define XNARCH_HAVE_LLMULSHFT 1
#define XNARCH_HAVE_NODIV_LLIMD 1
#endif /* !_XENO_ASM_ARM_FEATURES_H */
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